Flush tank metering device

Abstract

A metering device in the form of an article to regulate by metering the amount of water used to fill the trap in the toilet bowl through the vent tube of a toilet bowl flush tank during a complete flushing and filling cycle of the toilet bowl and the flush tank. The metering device eliminates waste of water by metering the amount of water entering the trap through the vent tube and saving excess water by depositing the excess water into the flush tank for use during the next flush cycle. The metering device is a one piece metering device with a smaller metering opening that is dropped into position in the vent tube in the flush tank. The metered water seals off the toilet bowl trap and the additional water is dispensed from the metering device and allowed to overflow into the flush tank.

What is claimed is: 
     
       1. An insertable flush tank water metering device for a conventional flush tank type toilet with a generally vertical vent tube in fluid communication with a toilet bowl trap, and a filler water tube for dispensing filler water connected to said vent tube, comprising: a stationary conduit metering means having an upper means for causing excess filler water to aid in filling the flush tank, and lower means for measuring water to the toilet bowl trap, said metering means constructed and arranged for inserting into the vent tube for receiving and metering of a selected quantity of filler water from the filler water tube to fill the toilet bowl trap and for causing any excess quantity of filler water received into the vent tube to overflow out of the vent tube into the flush tank as a result of metering a lesser amount of filler water out said lower means of said metering means during refilling of the toilet bowl trap and holding means for holding stationary said conduit metering means within said vent tube, said metering means is a conduit with an upper inlet; said upper means is a flange connected around said inlet; said lower means is an aperture smaller than said inlet; and said holding means includes said inlet and said flange provides direct access of flush tank water to overflow into the vent tube.